# Copyright (C) 2019 Verizon. All Rights Reserved
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import logging

from django.http import FileResponse
from drf_yasg.utils import swagger_auto_schema
from drf_yasg import openapi
from rest_framework import status
from rest_framework.views import APIView

from catalog.packages.biz.vnf_pkg_artifacts import FetchVnfPkgArtifact
from catalog.packages.const import TAG_VNF_PACKAGE_API
from .common import view_safe_call_with_log
from catalog.swagger.views import EtsiCatalogFileAutoSchema

logger = logging.getLogger(__name__)

VALID_FILTERS = [
    "callbackUri",
    "notificationTypes",
    "vnfdId",
    "vnfPkgId",
    "operationalState",
    "usageState"
]


class FetchVnfPkgmArtifactsView(APIView):

    @swagger_auto_schema(
        auto_schema=EtsiCatalogFileAutoSchema,
        tags=[TAG_VNF_PACKAGE_API],
        responses={
            status.HTTP_200_OK: openapi.Response("Return the artifact file",
                                                 schema=openapi.Schema(format=openapi.FORMAT_BINARY,
                                                                       type=openapi.TYPE_STRING)),
            status.HTTP_404_NOT_FOUND: openapi.Response("Artifact not found",
                                                        schema=openapi.Schema(type=openapi.TYPE_STRING)),
            status.HTTP_500_INTERNAL_SERVER_ERROR: openapi.Response("Internal error",
                                                                    schema=openapi.Schema(type=openapi.TYPE_STRING))
        }
    )
    @view_safe_call_with_log(logger=logger)
    def get(self, request, vnfPkgId, artifactPath):
        logger.debug("FetchVnfPkgmArtifactsView--get::> ")

        resp_data = FetchVnfPkgArtifact().fetch(vnfPkgId, artifactPath)
        response = FileResponse(resp_data)

        return response